CN214305122U - Mechanical bidirectional clutch rotary actuator with torque induction protection - Google Patents
Mechanical bidirectional clutch rotary actuator with torque induction protection Download PDFInfo
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- CN214305122U CN214305122U CN202023009905.5U CN202023009905U CN214305122U CN 214305122 U CN214305122 U CN 214305122U CN 202023009905 U CN202023009905 U CN 202023009905U CN 214305122 U CN214305122 U CN 214305122U
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- clutch
- rotary actuator
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Abstract
The utility model belongs to the technical field of household electrical appliances, concretely relates to two-way separation and reunion rotary actuator of mechanical type of moment of torsion response protection. The actuator can be used for household appliances such as refrigerators and the like which need to open and close the door body, and comprises a shell, an output shaft assembly and a driving assembly, wherein all the assemblies are mutually matched to realize various working states such as automation, manual operation and the like. The utility model discloses have moment of torsion protect function and prevent pressing from both sides the function, can the independent control respectively open the door and close the door process, can require the one-way or two-way automatic function of customization according to the customer.
Description
Technical Field
The utility model belongs to the technical field of household electrical appliances, concretely relates to two-way separation and reunion rotary actuator of mechanical type of moment of torsion response protection.
Background
The automatic rotary opening and closing device in the current market has no manual function, or needs to overcome large resistance in a manual mode, or needs another device such as an electromagnetic clutch to realize power transmission and cut-off, so that reliability is affected, unidirectional work or bidirectional work (unidirectional work refers to automatic closing or automatic opening only, bidirectional work refers to automatic closing and automatic opening) cannot be selected, and the automatic rotary opening and closing device is not beneficial to customized design. In addition, when the automatic opening and closing device is blocked during operation, the conventional automatic opening and closing device has no power cut-off function, and the mechanism cannot stop operating even if the power is cut off.
Disclosure of Invention
Not enough to prior art exists, the utility model provides a two-way separation and reunion rotary actuator of mechanical type of moment of torsion response protection.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a mechanical bidirectional clutch rotary actuator with torque induction protection comprises a shell, an output shaft assembly and a driving assembly.
The output shaft assembly is rotatably arranged in the shell; the output shaft assembly comprises a first clutch gear, a second clutch gear, a first output shaft, a second output shaft, a threaded shaft, a first spring and a second spring; the first output shaft, the first clutch gear, the second clutch gear and the second output shaft are coaxially and rotatably arranged in sequence; the opposite end surfaces of the second clutch gear and the second output shaft are provided with tooth surfaces matched with each other; a first spring which pushes the second clutch gear and the second output shaft away from each other is also arranged between the second clutch gear and the second output shaft; the threaded shaft penetrates through the second output shaft and the second clutch gear, one end of the threaded shaft is in threaded fit connection with the first clutch gear, a limiting part is fixed at the other end of the threaded shaft, and a second spring is arranged between the limiting part and the second output shaft; the first output shaft and the first clutch gear are coaxially and oppositely arranged, and tooth surfaces matched with each other are arranged on the opposite end surfaces of the first output shaft and the first clutch gear.
The driving assembly is fixed in the shell and can drive the first clutch gear and the second clutch gear to rotate according to different angular speeds.
The rotary actuator can be installed in a household appliance and used for driving a part needing to rotate, such as a door body and the like, to rotate. In operation, the drive assembly drives the first clutch gear and the second clutch gear to rotate according to different angular speeds. The first clutch gear rotates relative to the threaded shaft, and different relative rotation directions can control the first clutch gear to move upwards or downwards. When the first clutch gear moves upwards for a certain distance, the first clutch gear is clamped with the first output shaft to output power to the first output shaft, and at the moment, the second clutch gear is not in contact with the second output shaft and does not transmit power; when the first clutch gear moves downwards for a certain distance, the second clutch gear is clamped with the second output shaft to output power to the second output shaft, and the first clutch gear is not in contact with the first output shaft. In this way, the first output shaft and the second output shaft drive different rotation directions, respectively, and the first output shaft and the second output shaft output different torques due to different rotation speeds. Taking a refrigerator door switch as an example, the torque required when the refrigerator door is opened is the largest, and the torque required when the refrigerator door is closed is relatively smaller, so the device can be well suitable for the application scene. In addition, when the borne torque is too large, the first spring or the second spring can be compressed, the first output shaft and the first clutch gear can slip, and the second clutch gear and the second output shaft can also slip, so that the protection effect is achieved.
Furthermore, a thrust bearing is arranged between the first clutch gear and the second clutch gear in a padded mode, and a thrust bearing is arranged between the second output shaft and the second spring in a padded mode.
Furthermore, a counter bore is formed in one end, far away from the second clutch gear, of the second output shaft, and the second spring and the limiting portion are both sunk into the counter bore.
Further, the driving assembly comprises a motor, a worm wheel, a connecting gear, a first driving gear and a second driving gear; the first driving gear and the second driving gear are coaxially fixed, one driving gear is meshed with the first clutch gear, and the second driving gear is meshed with the second clutch gear; the connecting gear is coaxially fixed with the worm gear and meshed with the first clutch gear; the motor is fixed in the shell, the worm is sleeved on an output shaft of the motor, and the worm is meshed with the worm wheel. The first driving gear and the second driving gear rotate synchronously and respectively drive the first driving gear and the second driving gear to rotate according to different angular speeds.
Further, the number of teeth of the first driving gear is greater than that of the second driving gear; the number of teeth of the first clutch gear is smaller than that of the second clutch gear. The gear number of each gear is reasonably set, and the rotating speed ratio and the torque ratio of the first output shaft and the second output shaft in work can be adjusted to adapt to different application scenes.
Furthermore, a microswitch is also fixed in the shell; the micro switch is close to the edge of the second clutch gear. The position of the second clutch gear can be judged by whether the micro switch is in contact with the edge of the second clutch gear, so that the first clutch gear and the second clutch gear can be reset conveniently. In addition, when the load torque is too large, mechanical torque protection is triggered, the second clutch gear moves upwards or downwards to trigger the micro switch, and therefore the power supply of the motor is cut off
Furthermore, the edge of the second clutch gear is also integrally provided with a circle of positioning ring, so that the second clutch gear is convenient to be matched with the microswitch.
Further, the first output shaft and the second output shaft are both provided with adjusting gaps. When the first output shaft or the second output shaft is outputting power outwards, if reverse rotation is needed, the adjusting clearance can provide a section of reverse rotation space free from external force, so that the clutch state of the first clutch line gear and the second clutch gear can be smoothly changed.
Has the advantages that:
the utility model discloses utilize mechanical type clutch to realize automatic opening and shutting on the output shaft of power supply transmission difference control switch door, perhaps cut off power, realize manual mode.
The utility model discloses have moment of torsion protect function, through the cooperation of first spring and second spring, can protect transmission when guaranteeing to meet the resistance to realize preventing pressing from both sides the function.
The utility model discloses a first output shaft and second output shaft are the separation, can control respectively to open the door and close the door process to first output shaft can be dismantled, does not influence the function of a certain direction of automatic device that opens and shuts after the dismantlement, and another direction can be accomplished by manual operation after the dismantlement, can require the one-way or two-way automatic function of customization according to the customer.
The utility model discloses a can reduce the resistance that manual mode made furthest, use drive arrangement such as electromagnetic clutch less to guarantee higher reliability. And the power supply of the motor can be cut off in time when the torque overload protection occurs, so that the safety of a driving assembly and a user is protected.
Drawings
Fig. 1 and 2 are schematic structural diagrams of the present invention.
Fig. 3 is a partially enlarged view of fig. 1.
FIG. 4 is a schematic structural view of an output shaft assembly.
Fig. 5 is a schematic structural diagram of the driving assembly.
Fig. 6, 7 and 8 are schematic structural diagrams of the present invention in different states.
Fig. 9 and 12 are schematic views of different usage modes of the present invention.
Fig. 10 is a partially enlarged view of fig. 9.
Fig. 11 is a partially enlarged view of fig. 10.
In the figure, a housing 1, an output shaft assembly 2, a driving assembly 3, a first clutch gear 21, a second clutch gear 22, a first output shaft 23, a second output shaft 24, a threaded shaft 25, a first spring 26, a second spring 27, a limiting part 251, a motor 31, a worm 32, a worm wheel 33, a connecting gear 34, a first driving gear 35, a second driving gear 36, a microswitch 4 and a positioning ring 221.
Detailed Description
The invention is further illustrated by the following specific examples, which are intended to be illustrative and not limiting, and to illustrate and explain the invention.
Examples
A torque induction protected mechanical bidirectional clutch rotary actuator is shown in figures 1 to 8 and comprises a shell 1, an output shaft assembly 2 and a driving assembly 3.
The output shaft assembly 2 is rotatably arranged in the shell 1; the output shaft assembly 2 comprises a first clutch gear 21, a second clutch gear 22, a first output shaft 23, a second output shaft 24, a threaded shaft 25, a first spring 26 and a second spring 27; the first output shaft 23, the first clutch gear 21, the second clutch gear 22 and the second output shaft 24 are coaxially and rotatably arranged in sequence; the opposite end surfaces of the second clutch gear 22 and the second output shaft 24 are provided with tooth surfaces which are matched with each other; a first spring 26 for pushing the second clutch gear 22 and the second output shaft 24 away from each other is further arranged between the second clutch gear and the second output shaft; the threaded shaft 25 penetrates through the second output shaft 24 and the second clutch gear 22, one end of the threaded shaft 25 is in threaded fit connection with the first clutch gear 21, a limiting part 251 is fixed to the other end of the threaded shaft 25, and a second spring 27 is arranged between the limiting part 251 and the second output shaft 24; the first output shaft 23 and the first clutch gear 21 are coaxially and oppositely arranged, and tooth surfaces matched with each other are arranged on the opposite end surfaces of the first output shaft 23 and the first clutch gear 21.
The driving assembly 3 is fixed in the housing 1 and can drive the first clutch gear 21 and the second clutch gear 22 to rotate according to different angular speeds.
In this embodiment, a thrust bearing is disposed between the first clutch gear 21 and the second clutch gear 22, and a thrust bearing is disposed between the second output shaft 24 and the second spring 27.
In this embodiment, a counter bore is provided at an end of the second output shaft 24 away from the second clutch gear 22, and both the second spring 27 and the limiting portion 251 are recessed in the counter bore.
In the present embodiment, the driving assembly 3 includes a motor 31, a worm 32, a worm wheel 33, a connecting gear 34, a first driving gear 35, and a second driving gear 36; the first driving gear 35 and the second driving gear 36 are coaxially fixed, the first driving gear 35 is meshed with the first clutch gear 21, and the second driving gear 36 is meshed with the second clutch gear 22; the connecting gear 34 and the worm wheel 33 are coaxially fixed, and the connecting gear 34 is meshed with the first clutch gear 21; the motor 31 is fixed in the shell 1, the worm 32 is sleeved on the output shaft of the motor 31, and the worm 32 is meshed with the worm wheel 33.
In the present embodiment, the number of teeth of the first drive gear 35 is greater than the number of teeth of the second drive gear 36; the number of teeth of the first clutch gear 21 is smaller than that of the second clutch gear 22.
In this embodiment, a microswitch 4 is also fixed in the housing 1; the microswitch 4 is close to the edge of the second clutch gear 22.
In this embodiment, a ring of positioning ring 221 is further integrally provided on the edge of the second clutch gear 22.
In this embodiment, the first output shaft 23 and the second output shaft 24 are both provided with an adjustment gap.
As shown in fig. 9 to 11, the first output shaft 23 is used to close the door, and the second output shaft 24 is used to open the door.
As shown in fig. 6, this state is a manual mode state, the first clutch gear 21 and the second clutch gear 22 are not engaged with the corresponding output shafts, and the microswitch 4 is in a trigger state, and the door can be manually opened or closed, which is also the state in which the door is closed. After the action of opening and closing the door is finished each time, the motor 31 can be reversely rotated to return to the state, then the microswitch 4 is triggered, the motor 31 stops working, and the resistance of the manual mode is greatly reduced because the resistance of the gear set is not received.
As shown in fig. 7, this state is a schematic diagram of an electric door opening state, in the state of fig. 6, after the actuator receives an electric door opening command, the motor 31 operates to drive the first clutch gear 21 to rotate and move downward along the threaded shaft 25, to apply pressure to the second clutch gear 22, the first spring 26 is compressed, the second clutch gear 22 is meshed with the second output shaft 24 downward, after meshing, the first clutch gear 21 and the second clutch gear 22 are both rotating but they are independent of each other, the first clutch gear 21 and the threaded shaft 25 idle together and do not output power, and the second clutch gear 22 and the second output shaft 24 are meshed to transmit power for opening the door.
As shown in fig. 8, this state is a schematic diagram of an electric door closing state, and after the actuator receives an electric door closing command, the motor 31 operates to drive the first clutch gear 21 to rotate and move upward along the threaded shaft 25, the first spring 26 rebounds, and at the same time, the first clutch gear 21 is meshed with the first output shaft 23 upward, and the first output shaft drives the door to close.
When the electric door is opened or closed, the corresponding clutch gear and the output shaft are pressed through the spring, so that the slipping can occur when the torque is too large, and the second clutch gear 22 can displace to trigger the micro switch 4 to cut off the power. The above is the basic principle of mechanical torque sensing.
As shown in fig. 11, the first output shaft 23 and the second output shaft 24 have an adjusting gap between the shaft holes, and the adjusting gap is used to return the actuator to the state shown in fig. 6. Before the clutch gear and the output shaft are not separated, if the gap is not formed, the motor 31 reverse rotation door body can also rotate reversely along with the output shaft, the resistance is large, the resistance for separating the clutch gear and the output shaft is large, and the clutch gear and the output shaft can be smoothly separated after the gap is adjusted.
In addition, if one-way automatic operation is required, the use thereof is as shown in fig. 12.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.
Claims (8)
1. A rotary actuator, characterized by: comprises a shell (1), an output shaft component (2) and a driving component (3);
the output shaft assembly (2) is rotatably arranged in the shell (1); the output shaft assembly (2) comprises a first clutch gear (21), a second clutch gear (22), a first output shaft (23), a second output shaft (24), a threaded shaft (25), a first spring (26) and a second spring (27); the first output shaft (23), the first clutch gear (21), the second clutch gear (22) and the second output shaft (24) are coaxially and rotatably arranged in sequence; the opposite end surfaces of the second clutch gear (22) and the second output shaft (24) are respectively provided with tooth surfaces matched with each other; a first spring (26) which pushes the second clutch gear (22) and the second output shaft (24) away from each other is arranged between the second clutch gear and the second output shaft; the threaded shaft (25) penetrates through the second output shaft (24) and the second clutch gear (22), one end of the threaded shaft (25) is in threaded fit connection with the first clutch gear (21), a limiting part (251) is fixed to the other end of the threaded shaft (25), and the second spring (27) is arranged between the limiting part (251) and the second output shaft (24); the first output shaft (23) and the first clutch gear (21) are coaxially and oppositely arranged, and tooth surfaces matched with each other are arranged on the opposite end surfaces of the first output shaft (23) and the first clutch gear (21);
the driving assembly (3) is fixed in the shell (1) and can drive the first clutch gear (21) and the second clutch gear (22) to rotate according to different angular speeds.
2. The rotary actuator of claim 1, wherein: and a thrust bearing is arranged between the first clutch gear (21) and the second clutch gear (22) in a padding mode, and a thrust bearing is arranged between the second output shaft (24) and the second spring (27) in a padding mode.
3. The rotary actuator of claim 2, wherein: and a counter bore is formed in one end, far away from the second clutch gear (22), of the second output shaft (24), and the second spring (27) and the limiting part (251) are both sunk into the counter bore.
4. The rotary actuator of any one of claims 1 to 3, wherein: the driving assembly (3) comprises a motor (31), a worm (32), a worm wheel (33), a connecting gear (34), a first driving gear (35) and a second driving gear (36); the first driving gear (35) and the second driving gear (36) are coaxially fixed, the first driving gear (35) is meshed with the first clutch gear (21), and the second driving gear (36) is meshed with the second clutch gear (22); the connecting gear (34) and the worm gear (33) are coaxially fixed, and the connecting gear (34) is meshed with the first clutch gear (21); the motor (31) is fixed in the shell (1), the worm (32) is sleeved on an output shaft of the motor (31), and the worm (32) is meshed with the worm wheel (33).
5. The rotary actuator of claim 4, wherein: the number of teeth of the first driving gear (35) is greater than that of the second driving gear (36); the number of teeth of the first clutch gear (21) is smaller than that of the second clutch gear (22).
6. The rotary actuator of claim 4, wherein: a microswitch (4) is also fixed in the shell (1); the microswitch (4) is close to the edge of the second clutch gear (22).
7. The rotary actuator of claim 4, wherein: and a circle of positioning ring (221) is further integrally arranged on the edge of the second clutch gear (22).
8. The rotary actuator of claim 4, wherein: the first output shaft (23) and the second output shaft (24) are both provided with an adjusting gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023009905.5U CN214305122U (en) | 2020-12-14 | 2020-12-14 | Mechanical bidirectional clutch rotary actuator with torque induction protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023009905.5U CN214305122U (en) | 2020-12-14 | 2020-12-14 | Mechanical bidirectional clutch rotary actuator with torque induction protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214305122U true CN214305122U (en) | 2021-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023009905.5U Active CN214305122U (en) | 2020-12-14 | 2020-12-14 | Mechanical bidirectional clutch rotary actuator with torque induction protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214305122U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112503151A (en) * | 2020-12-14 | 2021-03-16 | 裕克施乐塑料制品（太仓）有限公司 | Torque induction protection mechanical bidirectional clutch manual-automatic integrated rotary actuator |
| CN114396210A (en) * | 2021-12-28 | 2022-04-26 | 宁波奥云德电器有限公司 | Electric opening actuator for charging small door of new energy automobile |
-
2020
- 2020-12-14 CN CN202023009905.5U patent/CN214305122U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112503151A (en) * | 2020-12-14 | 2021-03-16 | 裕克施乐塑料制品（太仓）有限公司 | Torque induction protection mechanical bidirectional clutch manual-automatic integrated rotary actuator |
| CN112503151B (en) * | 2020-12-14 | 2024-01-05 | 裕克施乐塑料制品（太仓）有限公司 | Mechanical bidirectional clutch manual-automatic rotary actuator with torque induction protection function |
| CN114396210A (en) * | 2021-12-28 | 2022-04-26 | 宁波奥云德电器有限公司 | Electric opening actuator for charging small door of new energy automobile |
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